This will likely give Sprint a boost in customers who don't want to be raped by AT&T's astronomical charges.
This also, means better coverage
What AT&T-T-Mobile deal could mean for customers | KATU.com - Portland News, Sports, Traffic Weather and Breaking News - Portland, Oregon - Portland, Oregon | Business
This the latest news that I found, looks like I will be able to keep my unlimited data plan, I hope they let me keep my discount on my bill!